US2924697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Edwin L Wiegand Co
•
Filing: 1958-05-27
•
Granted: 1960-02-09
•
Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 William L Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:48
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; A; A47; A47L; A47L15/00; A47L15/42; A47L15/4297; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2277291A
Cited
US2285305A
Cited
US2619097A
Cited
US2621666A
Cited
US2742927A
Cited
US2842144A
Cited
US2781765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |